Ammunition making machinery



May 23, 1950 w. s. REYNOLDS AMMUNITION MAKING MACHINERY Filed May 15,1945 7 Sheets-Sheet l INVENTOR. WARREN dKEm/MA;

ATTORN Y May 23, 1950 w. s. REYNOLDS AMMUNITION MAKING MACHINERY 7Sheets-Sheet 2 Filed May 15, 1945 INVENTOR. New?! J! Kim a4 a:

' ATTORNEY May 23, 1950 w. s. REYNOLDS AMMUNITION MAKING MACHINERY INVENTOR. M/QAREIV J. firm o4 as 7 Sheets-Sheet 3 Filed May 15, 1945 ATTOI/VIZ'Y May 23, *1950 'w. s. REYNOLDS AMMUNITION MAKING MACHINERY FiledMay 15, 1945 ATTORNEY May 23, 1950 w. s. REYNOLDS AMMUNITION MAKINGMACHINERY '7 Sheets-Sheet 5 Filed May 15, 19 45 INVENTOR. W xxaw J.Knox/0L0:

I. "Zr/Ami nun-mm mum.

I I lllllll n l'l'llll n. Illl' l ATTORNEY May 23, 1950 w. s. REYNOLDSAMMUNITION MAKING MACHINERY 7 Sheets-Sheet 6 Filed May 15, 1945 ENTOWARREN J fry/V040:

Patented May 23, 1956 3 Claims.

This invention relates to a machine for assembling ammunition componentsand is particularly adaptable for the assembly and manufacture of anelectrically operated primer for igniting the propellant charge of smallarms or artillery ammunition. The parts to be handled are relativelysmall, for example, the resistance wire for a, 20 mm. cartridge primerisabout .002" in diameter, and the outside diameter of the primer body isless than about 0.34" in diameter.

The primer must be accurately and uniformly made so as to functionproperly in the ammunition'for which it is designed. These and otherobjects of the invention will appear from the drawings and the followingdescription which are merely exemplary.

In the drawings:

Fig. 1 is a front elevation with portions thereof broken away, the feedhoppers being shown fragmentarily and schematically.

Fig. 2 is a sectional plan view taken approximately along the line 2--2of Fig. 1.

Fig. 3 is a fragmentary sectional elevation along the line 3-3 of Fig.2.

Fig. 4 is a rear view with portions thereof cut away. 7

Fig. 5 is an end elevation partially in section taken in the directionand along the line 5--5 of Fig. l, the hopper to the right of the linebeing shown fragmentarily, V

. Fig. 6 is a fragmentary sectional elevation takenalong the line 66 ofFig. 1, showing the construction of the coning and staking punches andtheir operating mechanism. I

Fig. '7 is a fragmentary elevation partly in section taken along theline l-'l of Fig. 1, showing.

the operating means for the left hand dial punches.

Fig. 8 is a detailed sectional viewlooking from the right hand side ofthe cup and pierce station along the line 88 of Fig. 1. v

Fig. 9 is a sectional viewof the central contact button of a primer.

Fig. 10 is a sectional view of the dielectric cup with a wire therein.

Fig.- 11 shows the assembled dielectric cup, wire, and central button ofthe primer.

Fig. 12 is a sectional view of a completed primer. 7

Fig. 13 is a modified form of the assembly mechanism located at stationC for assembling primers without wires.

Fig. 14 is a view from the right through the common assembly station Dof Fig. 1.

Fig. 15 is a view through the coming station F of Fig. 2 of the righthand dial.

Fig. 16 is an enlarged fragmentary elevation of the testing switch ofthe right hand dial of Fig. 1'7 is an enlarged fragmentary elevation ofthe dielectric cup blanking station A of Fig. 2. Fig. 18 is a circuitdiagram of the stop switch mechanism. 1 r Fig. 19 a modified form' ofthe stop switch circuit. i

Fig. 20 is a fragmentary side view of Fig. 8 looking from in front ofFig. 1.

Fig. 21 is an isometric view of the blanking punch of Fig.17.

Fig; 22 is a fragmentary view of a modified form of link drive for thedial indexing mechanism. Fig. 23 is a modified circuit diagram for usein testing for a short'circuit or a primer made without a wire.

' The primer will first be described and then the general operation ofthe machine briefly stated. The finished primer assembly seen in Fig. 12

' comprises a primerbody 25 which may be made of brass, copper, steel,stainless steel, or any suitable material. 25 isthe central contactbutton and 2'1 is a dielectric cup for electrically insulati'ng buttOn26 from body 25. The dielectric may. be of any suitable insulatingmaterial such as. Vinylite, polystyrene, resin impregnated paper; etc.The electrical resistance wire is shown at 28 said Wire ..extendingbetween the dielectric and button at 2.9 and making contact with the.

. button at this point. The wire 28 lies between 7 been cupped and anaperture 3| pierced therein. Wire 28 is shown in its relative positionto the cup as it is fed by the wire feeding mechanism prior to placingof the button in the dielectric. The button is assembled to thedielectric so that end 29 of wire 28 will be held between; thedielectric. and button. This assembly; is forced into the upper end ofprimer body 25 and. crimped to the form 'seenin Fig. 12. 7

.Shoulder or ledge. (Fig. 12) is provided forsupporting the dielectricand button therein. It is to be understood that the ledge may extend.toward the bottomi35 of the primer assembly. (not shown), if desired. Ithas been found preferable, however, to use the construction 1 shown inFig. '12 so that the body before coning place in two stations asdescribed hereafter but can be done in one operation, if desired.

The final step in the making of the primers is the placing of a suitablepriming composition therein adjacent to or surrounding the wire. Asdescribed hereafter, the wire may be omitted, the other assemblyoperations remaining the same.

In use, an electrical contact maybe made with the button 26 through thebolt of the gun-,- the primer body being grounded or otherwise connectedto the other side of the source of energy when the circuit is energized.The wire will become heated and ignite the primer composition, as iswell known in the art.

It can be seen from the foregoingthat a' number of operations arenecessary in the assembly of the described primer and that for quantityproduction a suitable machine must be provided to accurately and rapidlyassemble said primers. This is accomplished in the present machine byproviding two work carrying transfer dials rotating in synchronism tobring the various parts together in an assembling operation. In onetransfer dial, the dielectric is blanked from a flat strip at station Aand cupped and pierced at a second station B. At a third station C, abutton, said dielectric cup, and said wire are brought together andassembled. A wire feeding. mechanism is employed to feed wire. from aspool and to out the same at the wire feed station. The dial thencarries the assembled dielectric, button, and wire to a final componentassembly station D (Figs. 2 and 14), said station being common to thetwo dials. The second dial has previously had primer bodies fed thereto(station E) and carries said bodies underneath said final componentassembly station D. A punch at this point then moves the button,dielectric, and wire assembly from the first dial into the primer bodyheld in the second dial. The second dial then carriesthe assembled partsto a coning station F where the upper part of the primer body is conedinwardly. The final staking or closing operation can then'be performedat the next station" G. The completed primer is then transferred to asize and eject station H, where a punch forces the primer through a diewhich sizes it as it is ejected from the second transfer dial. Itisto beunderstood, of course, that various sequences of operations may be used,or different components may be assembled. The machine provides variousadjusting means and devices for making themachine suitable for theassembly in quantity of accurately sized and made primers.

Dielectric feed The dielectric is fed from a roll (not shown) through afeed pipeor guide (not shown) to a roller 31 (Figs. 1, 2 and 17), saidroller being rotated a predetermined amount for each" feeding operation.A roll 38 is pivoted on arm 39 and spring-urged by spring 40 (Fig. 1)against feed roll 31 so as tocause the dielectric to befrictionallyengaged by roll 31. Dielectric28 isfed over plate 4| (Fig. 17) under theblanking punch 42 (Figs. 1 and 17)., said punch cooperate ing withblanking die aperture 43 in plate 4l 2 and 4), upon which feed roll 31is mounted, Shaft 48 is connected through spiral gears 45 and 50 withthe main operating shaft 5| of the machine. An eccentric cam 52 (Fig. 4)is adjustably mounted on collar 51 carried by shaft 48. Said eccentricoperates cam roll 53 to reciprocate rack 54, spring 55 being provided tourge the roll against the eccentric. Eccentric 52 is adjustably mountedby means of a pivot 56, said pivot being integral with or attached insome suitable manner to collar 51 (Fig. 2). Eccentric 52 has anelongated arcuate slot 58 (Fig. 4), said slot being of sufficient sizeso as to encircle shaft 48 and allow movement of the eccentric aboutpivot 56. Set screws 59 and 60 are provided to adjust the position ofthecenter of the eccentric relative to the center of shaft 48. In thismanner, it is possible to vary the throw of the eccentric and thereforethe length of reciprocation of rack 54 without changing the timing ofthe operation perceptibly.

Rack 54-engages gear teeth SI of oscillatable collar 62, said collarbeing freely mounted on sleeve 63 (Fig. 2) and having an arm 64 integraltherewith. Arm 64 has gripping roll 65 rotatably mounted thereon. Thecenter of gripping 'roll 65 is eccentric relative to the center of stud66 so that the center of the feed roll has an arcuate motion about thecenter of the stud. A spring 61 (similar to spring 14 shown in Fig.2 forroll 10) is provided for rotatably urging the roll on said stud in thedirection shown by arrow 68. As rack 54 moves to turn collar 62 in acounterclockwise direction (Fig. 4), roller 65 will tendto rotatecounterclockwise so as to firmly grip collar 69, collar 69 beingattached to shaft 41. The gripping takes place because of the eccentricmounting of roll 65 relative to its pivot 66 which causes the distancebetween the center of collar 69-and the center of the roll itself tobecome less, and therefore, the distance between the center of the rolland the face of collar 6-9 to become less. When the rack reverses itsdirection so that collar 62 is turned clockwise (Fig. 4 roll 65' willtend to be rotated in a clockwise direction, thereby increasing thedistance between the center of the roll and the face of the collar 69 soas to release said collar. Thus, roll 65- serves as a pawl for operatingthe collar, yet it does not have itsaction limited by the position ofteeth cooperating with the pawl. The lock for collar 69,.serving to holdsaid collar in position as the rack 54 reverses, comprises aneccentrically mounted locking roll 10, said roll' being fixed as at 1|(Fig. 2) to the frame'of the machine. The center of stud 12 for saidroll is eccentric relative to the:

center of the roll itself. 7 A spring 14 is provided,

tending to rotate the roll in. the direction of arrow '15. When collar69 is being moved counterclockwise (Fig. 4), roll 10 is rotated.clockwise and thus the distance between the center of said roll and theface of collar '59 is increased, there by unlocking collar 69 from rollIll. As the rack reciprocates in the opposite direction so that collar62 is rotating clockwise, locking roller It will be urged in acounterclockwise direction, thereby holding and preventing collar 69from rotating in a reverse direction. It thus is seen that reciprocationof rack 54 will cause roll 65 to grip collar 69 when collar 62 isrotated in a counterclockwise direction, thereby causing feedingrotation of shaft 41. Upon return movement of the rack giving aclockwise direction of rotation to collar 52, looking pawl 10 will comeinto action to hold the feeding shaft 41 against" rotation. By suitableadjustment of eccentric 52, any desired amount of travel may betransmitted to the dielectric feeding shaft 41 so as to feed the correctamount thereof at each cycle of operation.

In order to assist in placing the blanked dielectric in an aperture 44,arm 245 (Figs. 2 and 17) is actuated by cam 2I5 carried on shaft 48.Said arm has a projection 245 which is movable upwardly against theblanked dielectric. Springpressed plunger 24! is compressed as the punchcomes in contact with the dielectric. Projection 246 is brought againstthe dielectric about the same time as the punch. Cam 2 l 5 positivelyremoves projection 246 from the blank prior to movement of the punchupwardly. Arm 245 can be pivoted and cam roll 3 I held against the edgeof the cam by a spring 3, this type of cam being known as an open cam.As punch 42 rises upwardly, compressed spring, 2I6 behind punch 241 willpositively eject the blanked dielectric from the end of punch 42. Punch42 may have a slot 249 (Figs. 17 and 21) to accommodate collar 250mounted on stud 244 carried by head 82. Blanking punch 42 isreciprocable in guide 242 which is inserted in plate 2II mounted onL-shaped bracket 24I, said bracket being mounted on the frame of themachine by screws 240. After screws 240 have been removed, the punch canbe turned so that slot 249 will allow removal of the bracket andassembly from the machine. Channel 2I8 in plate 2" (Fig. 7) is providedfor passage of the dielectric.

Dielectric cup and pierce station Dial 45 (Fig. 2) is indexed to bringthe circular blanked dielectric to station B. As seen in Fig. 8, recess46 is provided in dial. 45 for holding a blanked dielectric disk. Aplate 80 is located under the punch at this station, said plate having abushing with an aperture 8| in subpress assembly 23I the approximatesize of the hole to be punched in the dielectric. Head 82 carrying punchassembly 83 is moved downwardly at an appropriate time by the mechanismwhich will be described hereafter, the exterior holding punch 84 firstcontacting the blank in recess 46. Movement of crosshead 82 istransmitted through arm 233 to springs 234 and then to crossbar 235.Continued movement of head 82 will carry cupping punch 86 downwardlyinto aperture 44 so as to cup the dielectric. After the cupping punch isstopped upon completion of the cupping operation, cutting punch 238 thencontinues movement to cut a hole in the cup, clearance being provided at237 to allow a floating movement of the punch assembly.

It is to be noted that the dial is shown in Figs. 1 and 2 at a time whenthe punches are elevated and the dial is in an intermediate positionbetween stations. Fig. 8 shows the dial when an aperture 44 is under thecup and pierce punch at station E. A solid subpress assembly 23I (Figs.5 and 8) serves to hold the various parts just described.

Button, dielectric and wire assembly The next indexing of the dialcarries the cupped dielectric to station C, which is the button,dielectric, and wire assembly station. A hopper 90 of conventional formof the type shown generall in the patent to Butler, No. 774,827, may beused to furnish buttons 26 to chute 9I, said chute having a slot forcarrying buttons to fingers 92 and 93 at station C. The hopper should beof the type shown in said Butler patent, No. 774,827, or an equivalent,so as to insure the carrying of the buttons in the correct position tostation C. Fingers 92 and 93 may be mounted on stud 93 (Fig. 2) on theframe.

The wire feed and cut-01f mechanism together with the assembly operationat this station is described fully in copending application, Serial No.559,218, filed October 18, 1944. Briefly, wire 95 is .fed by means ofgripper plates 96 and 97 (Fig. 1) mounted on sliding carriage I04.Clamps 98 are provided to hold the wire as grippers 96 and 91 arereversed in readiness for another feeding operation. Crank link 99 isoperated from the end of shaft 48. Link I00 is pivoted at IOI to crankarm 99 and is pivoted at I02 to carriage I04. Projection I03 mounted onlink I00 is operable to contact top gripper 91 and force it againstfixed lower gripper 96 so as to clamp the wire therebetween. As shaft 48rotates, link I00 is rotated clockwise (Fig. 1) around pivot I02, thecarriage remaining stationary until projection I03 has contacted gripper96 and the wires clamped between grippers 96 and 91. At this time,further movement of crank arm 99 will cause carriage I04 to moveupwardly and carry a piece of wire toward station C. Holding clamp 98comprising separable elements is released at this time so as to allowthe wire to slide therebetween. After the wire has been fed and cut inthe manner about to be described, cam I05 will operate on lever I06 andcause holding clamp 98 to grasp the wire. At this time, crank link 99will start to reciprocate in the opposite direction, thus rotating linkI00 counterclockwise about pivot I02. Rotation will continue untilcontact is made with adjustable screw I07 mounted on carriage I04.Reciprocation of crank link 99 then will be imparted to carriage I04 andcarry it away from station C to a position in readiness to grasp thewire for another reciprocation toward the feeding station, rotation'oflink I00 having released grippers 96 and 91 from engagement with wire95.

Rod I08 has a slot (not shown) in the top thereof to guide the wire sothat it will enter the dielectric in the direction shown in Fig. 10 inreadiness for a button 26 to be inserted into the dielectric cup. Theslot allows upward movement of rod I08 about the wire. Upwardmove mentof rod I08 is caused by spring IIO upon movement of the right end ofpivoted arm III (Fig. 1) upwardly. Rod I08 continues upwardly until thetop thereof touches the bottom surface of a button 26 located betweenfingers 92'and 93. During this same time, punch II2 has been descendingwith head 82 and touches the top of the button at approximately the sametime rOd I08 touches the undersurface of said button; Further movementof head 82 and punch IIZ downwardly will carry the button between rod'I08 and punch II2, toward the dielectric, said movementbeing allowed byspring IIO. Pivoted lever I II merely serves to release rod I08 so thatit can move upwardly under the urgence of spring H0 at the correct time.As the dielectric and button are brought together, the previously fedpiece of wire is suitably located between the button and dielectric andgripped therebetween, as seen in Fig. 11. At this time, end 76 ofpivoted lever I I I is moving downwardly to contact collar II3, therebypositively moving rod I08 downwardly. End 76 of lever I II then receivesa further movement downwardly until pivoted arm ll4,.w.hich is pivotedat H5 0 lever III, touches absence the top or. adiustableabutment I16;Further movement of end 1501 lever I'II downwardly then causes rotationcounterclockwise of arm I I4 so as to cause movement of collar I I-1upwardly. Rod I08 passes through collar II1. Upper edge II8 of collarII1 cooperates with the edge of the wire guide quill II9' so asto cutthe wire at this point. End 16 of lever II-I' then moves rapidly upwarddue to the shape of cam I25 so as to allow spring I-2I- to withdraw thecutter from its 1 cutting position.

In the event a primer is being assembled which does not have a wiretherein, the apparatus shown in Fig. 13 may be used in place of the wirefeed assembly apparatus just described. It is necessary to guide thecontact button from the feed track and fingers into position in thedielec trlc cup. Cam 2!!! is mounted on shaft 45. for operating lever220 which is similar to lever. III. Said lever 22!! allows spring 22I tomove rod 222 upwardly at the appropriate time in the manner describedfor rod I08. The-other parts in Fig. 13 are given the-same referencenumerals as those in'Fig. 1. Operation is similar to that describedpreviously except that no wire is fed or cut;

Final parts assembly station The next indexing of dial 45 carries theassembled button wire, and dielectric to the final parts assemblystation (Fig. 14) As the button, dielectric, and wire rotate to stationD, wire end 28: (Fig. 11) will trail across guide plate I35 (Figs. 1,2and 14) said plate being beveled as at I36 to guide the wire and causeit to trail properly toward station D. It'is possible to provide a.track (not shown) in plate I35 to guide the wire to station D and insureproper location thereof across the cup at the assembly station and thereby positively prevent misalignment of the. wire due to movement of theparts. This track can be a narrow arcuate slot on the line of center ofrotation of apertures 44 in dial 45. The plate without a track willserve, howevento keep the 7 wire in place so asnotto be moved sidewaysby the primer body in dial I25 as the parts are rotated toward eachother. Bracket 223 (Figs. 1 and 2) can be used to support chute andbracket224 to support chute I28.

Primer body (Fig. 12) is fed to dial I25 at station E,'. the body beingfed to fingers I25 and I21 through a suitable chute I28 from aconventional hopper diagrammatic-ally shown at I 29, said hopperproperly arranging the primer bodies. Said hopper may be of the typeshown at 90 or one similar thereto. Fingers I26 and I21. are fastened bystud I30 (Fig. 2) which is secured to the frame in asuitable manner.Dial I25 has suitable apertures I33 therein to receive the primerbodies. Punch I3I is operated by crosshead I32, which will be describedhereafter, to carry a primer body from between fingers I26 and I21 intoan aperture I33 in dial I25.'

Work transfer dial I25 is rotated in synchranism with work dial 45 sothat a primer body is brought underneath station D at the same time abutton, dielectric, and wire assembly is brought to said point (Fig.14). Assembly punch I31, carried by head 82, advances downward-1y andengages the button, dielectric, and wire assembly I38 as seen in Fig.14, carrying said assembly throughaperture I39 in plate I into positionin primer body 25.

Com'ng and staking stations The next indexing of dial I25 carries theassemblyof the button, dielectric; wire andprimer body to station- F, orthe 'coning station. The operation performed at this station partiallyturns over the upper walls: of: the primer body over button 26.Inasmuchas considerable work is done at this point and it is importantto maintain the accuracyiofdimensions, a positive support must beprovided under the primer body as coning punch I40 advances. downwardly.The anvil M1, or support for this: purpose, is shown. inL'Fig. 3 asapplied to the staking, station. G. Said anvil issubstanti'allyidentical to that used for the coning station, so the. same descriptionwill apply to both. Coning. punch Hill has an interior recess of thegeneral shape shownxin dotted lines 22-5 in- Figs. 5 and 6. Anvil MI iscarried in the reciprocating. holder I42 and. is moved upwardly so as toenter into the primer. body and to engage ledge 34 (Fig. 12.). of theprimer body at or-before the time coming: punch I40 has started tooperate on the upper walls of the primer body. Reciprocating member I42(Fig. 3) has' an inclined slot or aperture I43, which is engaged byinclined cam I44, said incli'ned cam being located at the same anglerelative' to the horizontal as the margins of slot I43. Inclined cam I44is reciprocated and may be integral withguide I45. As. guide I45 ismoved to theleft (Fig. 3'), reciprocating holder I42 and anvil I4I arepositively moved upwardly similar to a wedging action. Guide I45 isreciprocated: by crosshead I43 (Figs- 2. and 3)v operated by box camrI41 through cam roller I48 attached to yoke I49. The guide and. inclinedcams I44 are adjustable by means of nuts I50- It thus is seen that thereis a positive anvil support for the primer body at the coning stationand. also at-the staking station, there being substantially identicalanvils and operating, mechanism at each stationureciprocated bycrosshead I46. After the primer assembly has been coned or partiallyclosed, dial I25. indexes the asseme V bly-to the staking stationG.Staking punch I5I (Fig. 5)- descendsv and contacts the cone surface andflattens the same to the shape shown in Fig. 12', one of the anvils- Edihaving been recipr0- cated upwardly so as to. support the bottom ofledge 34 before the staking. punch starts to operate. The coning andstaking punches are operated. by a. common slide which will be describedhereafter. It is to be understood that the entireoperation of closing.may be done at one station and the second station omitted if. desired.

Size and eject station Following completion of the primer to the form ofFig. 12, dial I25 indexes and carries the primer to the sizeand ejectstation H. Size and. eject. punch I52 (Figs. 1 and 5) is moveddownwardly and contacts the assembled primer in the dial. andv movessaid primer downwardly through. a die I53 in the frame of the machine,this die being of the correct dimension so as ,to sizeexteriorly theprimer. The ejected primer passes through opening I54 into a suitablereceptacle.

Driving mechanism First, the general drive mechanism will be indicated;and following this, the specific operation of the various punches andreciprocating parts described. A motor I55 (Figs. 1, 4 and 5) of anysuitable type maybe used to drive a pulley I56 (Figs. 1 and 4) locatedon countershaft I51. Gear I58 keyed to shaft I51 engages gear I59 keyedto main operating shaft. 5|. Qn

shaft I are located the cams and eccentrics for operating the dialmechanism, the punch drives, the conin and staking anvils, and the diallooking means. Belt I60 (Figs. 4 and 5) is driven from pulley I6I (Figs.4 and 5) on shaft SI for the purpose of operating shaft I62, upon whichare located the belts for driving the rotatable hoppers. Pulley 81serves to guide belt I68 over shaft I 51. One of the hopper belts isshown at I63 (Fig. 5) operating hopper I29. Shaft 5I also has locatedthereon spiral gear 49 (Fig. 2) for operating shaft 48, shaft 48operating the dielectric feed and the wire feed mechanisms.

Transfer dial drive Crank link I64 is pivoted at I65 to disk I66, saiddisk being connected to shaft 5I and rotatable therewith. The oppositeend of crank arm I64 is pivoted at I61 to the pawl operating slide I 68,said pivoted connection being of any suitable adjustable or fixed type.Pawl operating slide I68 has a block I69 adjustably mounted thereon andheld in place by screw I18, there being provided an elongated adjustmentslot 11 (Fig. 3). Guide plate 32 holds the slide I68 in place. Thesurfaces between block I69 and slide I68 may be serrated so as to'lockthe relative adjustment between these parts. Block I69 is connected toswinging arm I'II (Fig. 2) by means of a slidable connection I12,swinging arm I1! being freely pivoted on transfer dial shaft I13. Pawllever I14 is pivotally mounted at I15 to the outer end of the swingablearm I1I, spring I16 serving to urge the pawl toward the periphery of thetransfer dial I25. Suitable teeth are provided on the exterior surfaceof the transfer dial I25 for engagement with the pawl, such as shown atI11 of Fig. 2. As arm I1! is oscillated in a clockwise direction, pawlI14 will engage a tooth as at I11 and rotate the work transfer dial I25in a clockwise direction. Upon return movement of slide I68, pawl I14will yieldingly move over the teeth and engage the next preceding toothof the dial. Rotation of dial I25 is transferred to work transfer dial45 by means of gears I18 and I19 attached to shaft I13 of dial I25 andshaft I89 of dial 45, respectively (Fig. 4). Reciprocation of crank link!64 thus indexes dials I25 and 45 in synchronism.

A modified form of link drive mechanism having provisions for yieldingin the event of a jam in the dial transfer mechanism is shown in Fig.22. Identical parts have the same numerals as those shown in Fig. 5.Disk I66 mounted on shaft 5! has pivot pin 228 attached to inner link229 and positively drives said link. This link has an elongated slot239. therein through which passes pin 232, said pin being attached toslide I68 and outer link 236. Outer link 236 has an elongated slot 248through which pin 228 passes. Spring 25! is attached at one end to outerlink 236 at 252 and at its other end to inner link 229 at 253. Thespring tends to hold the pins 232 and 228 at the outer ends of elongatedslots 238 and 248, respectively. In the event there is a stoppage in thedial indexing mechanism, spring 25I will give, and each of the pins willadvance toward the opposite ends of their respective slots. By thisconstruction, a yieldable connection is provided which will not protrudefrom the rear of; the machine normally or when there is a stoppage andthus safeguard anything which might be close to the machine at thattime.

The dials are locked with the work carrying apertures in their correctlocation relative to the operating stations by means of a locking yoke IM (Figs. 2 and 3). Said yoke has a projection I82 for engaging one ofthe locking notches I83 of the dial I25. The opposite end of yoke I8Ihas a similar projection for engaging one of the corresponding lockingnotches I84 in transfer dial 45. Looking yoke I 8| is attached tocrosshead I46 by rod I85 (Fig. 3), spring I86 serving to urge thelocking mechanism toward the dial so that in the event of a stoppage orjam, the locking means will not be moved positively toward the dial witha reciprocation of crosshead I46, nuts 254 being on the end of rod I85and said rod being freely reciprocable in crosshead I46.

Button, dielectric and wire assembly punches I The dielectric blanking,cupping and piercing, and preliminary assembly thereof with the wire andbutton, and assembly of this sub-assembly with the primer body isperformed by four punches carried by one operating slide. Head 82carries the four punches just referred to and is, in turn, fastened toslide I89 (Figs. 1 and 7). Slide I89 may be of conventional dovetailtype having inclined faces I88 and E81 engaged by gibs I98 and I!" heldby bracket I92, said bracket I92 being fastened to the frame of themachine in any suitable manner. Gib I 9! is adjustable by means ofscrews 255. The upper portion of dovetail slide I89 has'a slot I93therein, which is engaged by a ball-like projection I94 fastened to armI95 of the main operating punch lever I96. The main operating punchlever I96 is pivoted on shaft I91 nd is oscillated by main cam I98mounted on shaft 5|, cam roller I99 being interposed therebetween. Itthus is apparent that oscillation of the main punch operating lever I96will serve to reciprocate slide I89 and thereby carry dielectricblanking punch 42, dielectric cupping and piercing punch assembly 83,button assembly punch I I2, and final parts assembly punch I31, towardand away from dial 45.

Coning and staking punch drive The coning and staking punch at stationsF and G are fastened to dovetail slide 288 (Figs. 1 and 6), said slidebeing of the same type as slide I89 and mounted in grooves havingadjustable gibs. The adjusting screws for one of the gibs may be seen at'28I (Fig. 5). Bracket 282 is fastened to the front of slide 289 andserves as an upper member for engagement by semi-circular surface 263 ofthe drive member 284 fastened to punchoperating lever I96. Saddle 285 isslidably mounted on surface 296 of the slide 288 and has engagedtherewith a mating semicircular saddle 281 which is slidable on surface2I4 of the operating projection 284 of lever I96. By employment of thisconstruction, arcuate stroke of projection 284 is provided for and therelatively heavy loads necessary for the coning and staking operationsare transmitted to the slide from the operating lever I96 on surfaces ofconsiderable area as compared to the usual ball and straight surfacecontact.

Primer body delivery punch and erection punch The primer body deliverypunch I 3I (Figs. 1 and 5) and size and eject punch I52 are operatedfrom crosshead !32, said punches being attached to operating rods 261and 298, said rods being reciprocable in crosshead I32 and urgeddownwardly by a spring such as 256. Plate 269 may be fastened in anysuitable manner to F-shaped crosshead I32. Fingers 2I8 and 2H areengage- 1 1 able" in slots 'incrosshead I 32; said fingers" beinintegral with bracket 2'12 (Fig. fastened to punchoper'ating-zleverdHeat 213% oscillation of the punch'operatingleverthuswill cause-vertical reciprocation of primer body-'de1ivery-punch l 3 l i and sizeand eject" punch- |52 ltis seen thatpunch" operating; lever I95 oscillates' about shaft I 91 toreciprocat'eslide-181 carrying the punches operating on the components in transferdial 45 to? reciprocate slide are carrying the coning and stakingpunches; and to'reciprocate"crosshead I 32 carrying rods for" operatingthe primer body delivery; size;.and='eject punches: The slides andpunchesare operated in synchronism with the movement oi-thetransfendials .and .the dielectric wire feed'mechanisms.

Stopmechanism.v

Aiitomatic st'op' devices' may provided. so as to stop themachin'e inthe-eventbuttonsifailto feed in" chute- 9|; primer bodies fail: to feedin chute 12s; a jam occurs in tneassemb1y opera tion-in thelefthand dimso as to' preventidown ward movement oi' crosshead 8 2; and to stop."the machine in the event-an open circu-it is detected in; a primer afterit hasbeeni finally assembled andcomp1ete1y shape'd Buttonchute detectorReferring to .1"; a normally closed switch 25'F which maybe'ofthetypeilinown as a'HMicroswitc I "is mountedionthei frame ofthemachine. mpivoted lever '2 58 isspivoted at? 259rto the frame. Hod!25-13 is= fastened'at'tone end; to; the" pivoted leverand at: the otherend? to bracket 264 mountecf on reciprocatingslide' 18. 7 Spring; 262bears againstcollar 263:; fastened to rod 260. Cbllariiifi is fastenedto rod'zfifi. As: the slide I36 reciprocatem. the" upper end of therod-is given a complexmotiorr which servesto osoillate pivoted lever258. If there'isa button underneath the endi 26 of pivoted? lever 258,the lever will be preventedfrom moving far enough to operate button 265of the Micro-switch, lever 258 'being: oscillatedthe slide: moves"upwardly, spring'ZSZ allowingipivoted-lever 253 to be: stopped byabutton. In theaevent: there is no' button under end'264q.leve1f'2-58=will be oscillated sufficiently fan to operate Micro switch 2 51'.The circuit in which this switch is contained wilLbe describedhereaften.

Primer body chute detector Referring to Figss L and 5;, normally closedswitch- 2654s mounted. on the frame of: the: ma.- chine. Pivoted lever:265= is-mounted at 251-011 the -f-rame. A-- rod 26!! passes through-anaperture ZGSin-theframe of -the machine. Spring 2- 1 3 bearsagainstcollar- 2H= mounted on. the upper end of therod, tending to raise thesame. Bracket 21% is. mounted on: oseillatings arnr. 212$. Collars 213,.2'1 5-hold the lower end offrodzfidin relation to one-end of pivotedlever 266'.- Theouter end 216 (Figs. 1- and 5% of the pivoted lever isarranged to contact a primer body in thechute 128. As the arm 2E2 isoscillated so that bracket 2T2 moves upwardly; spring 211] will tend tomove rod :258 in an upward direction.- The presence of? a primer body inthe-chuteunder end 2-16: of the-pivoted machine: will limit theupwardcourse of ro'd zfid-such as to prevent operationof button 2-1-:|of the.Micro-switch Left'hand dial stop mechanism In orderto. provideastop forthe machine-in the event any" of the punches carried by cross-12 head 82- are prevented from movement all the way downward andthusprevent damage to'" the machine or tools, a stop mechanismiis providedto stop the main operating motor of" the machin'e. Referring to Fig.Clever 196' serves t'o oscillate projection I94 which;.in turn; reciprocat'es'plunger ZTB in-a vertioal'direction'. Spring 20 2 located inaperture 219' bears against the underside of pIunger'ZIB and urgessaid'plunger upwardly until the'b'ottom of elongated? slot 305 isstopped by pin "281; said pin being carried by slide 189:Ii'ever281l-(Figs.- 1 and 7) 'is fa stened tb pin'28'1 In"- the eventslide I81 is stopped'before complete downwardtravel. occurs, plunger 218will move downwardly relative to slide I81 and pm 282% willibermoveddownthe sunfacesof-arm'nfl so-wasito overcome springi-Bha-ndcauser'thezupper end of; arm? 2am torpush plunger 1B4 of-v Micro.-switch 285. inwardly and:- open the switch. If there is no; relativemovement. betweens plunger 218 and slide: I81; there will-be nomovement'of armidll relative to the. plunger Of? the Micro switehsorthat-theswitch-.wi11 not--be1-operated-.

Primer" wire "testing 7 Y In-orden toitest continuity of. the. primer.wire andto. stop the machine. in. casethe wire has beenbroken or ismissing, a. contact arrange.- mentshown inEig. 16 is-car-riedon swinging.arm [Fl-l... Said contact. comprises. a U-shaped con.- tacton 28%mounted. on arm. I by.- suitable. insulators. ,291Land screw 2-91.. Thecontact portion Z'SLis. arranged. relativeto. the apertures I33 inthedial. I25. so that. it. will bein registry with a primer 293:0arriedin oneof saidaperturesas the dia1'.is.-being.indexed; The circuit.isarrangedas will be hereafter describedsoas tocause. current to.passthroughsaid; contactor only whenthe contact is in.position.ove1xaprimer in the dial. The methodof operationof thisv detector. will bedescribed in thenext section.

V Machinestop 'circuits One form' of circuit'whicnmayi be used forthe'machinestop'is shown in Fig." 18', wherein the normally closedMiCI'OrSWitChfiS "251, 265" and 285 are shownin the holding coil circuitofia conventional I line. starter; The. source. of power is indicated at283 This source of power may be a battery or may be taken directly fromthe mainpower' leads 298. Power issupplied" to'the line starter29'9.through leads 298 and from the linestarterto the machineoperating motor281. Normallyopenlrelay Z'95has aisolenoid" 294 which serves to. keepthe. switch 295 closed whenever the" circuit. supplying the solenoid isenergized; As swinging arm IH is being operated to index right hand dialI25, contactor 289. will be over the" top of a primer. The dial itselfmay be groundedthrough lead 295 or connected. to the other side of thesource ofipower. 296 many suitable manner. Power flowing from source 296through solenoid 294 and through a perfect primer will: cause relay" 294to' be energized to close'switch 295 or to cause thesame to; remainclosed. Micro-switch 291 is connected in parallel with theprimer'contactors' 289'and 295'. As the swinging .arm is beingreversedafter an indexing of the dial, contactor 289 will be re;-movcd'from a primer. In orderto'preventswitch 2.95. from opening,switch- 29"! isclosed so as to keep" the circuit through the solenoid.After switch blade 289 has contacted the'next primer, switch 291isreopened so" that the testis made for continuity oflthe wire in theprimer. In the event there is no" wire in the primer; solenoid 294 willbe de-energized and switch 295 opened so as to stop the driving motor.Switch 29! is operated in correct time with swinging arm I'll by pin 298(Fig. 3).

A slightly different circuit arrangement is shown in Fig. 19, whereinMicro-switch 29? is in parallel with switch 295 instead of being in theauxiliary circuit as shown in Fig. 18. Switches 251, 295 and 285 arenormally closed. A source of power is indicated at 288 for the holdingcircuit to the line starter. Power is supplied through leads 298 to themachine operating motor 257. When the swinging arm moves contact 299over a primer which has a wire therein, solenoid 294 will be energizedso as to cause switch 255 to be closed. At this time, Micro-switch 29!is opened by pin 298 so that the circuit is completed through 295. Ifthe primer does not have a wire therein, solenoid 294 will not beenergized and switch 295 will not be closed so that the circuit from theholding coil to the line starter will be broken.

In the event it appears desirable to test for a short-circuit condition,for example, when a primer is being assembled of the type not having awire, the circuit shown in Fig. 23 may be used. In this circuit,normally closed switches 25?, 295 and 285 are in series with the holdingcoil of the line starter 299 and source of power 298. Re-

lay switch 300 is normally closed. Solenoid 39! is connected in serieswith switch 29?, contactor 392, contactor 993, and source of power 999.When the contactor 392 is over a primer in the dial and the primer islocated between contactors 592 and 993, Micro-switch 297 is arranged tobe closed. In the event there is a short circuit between the button andthe prin er body, a source of current will flow through solenoid 991 andopen switch 300 so as to break the circuit from the holding coil to theline starter. If the primer is good and there is no short circuit, therewill be no circuit completed to solenoid 39! when switch 291 is closedand the primer is located between contactcrs 392 and 393.

Summary The operation of the machine will be briefly given. Motor I55drives main shaft 5! through gears I58 and I59. The hoppers are drivenfrom shaft I92 which is connected by belt I69 with main shaft 5!, hopper90 feeding buttons into chute 9i and hopper I29 feeding primer bodiesinto chute I23. Prior to the downward movement of the punches. thedielectric feeding movement operated from shaft 48 has indexed roll 91to feed a fresh portion of dielectric blank to station A. Downwardmovement of the punches will cut a circular blank of dielectric atstation A. At station B, a previously blanked dielectric is cupped andpierced by the punch arrangement shown in Fig. 8. At station C, a buttonheld in fingers 92 and 93 is assembled with a cupped and. pierceddielectric transferred previously from station B. During this operation,a piece of wire is fed between the button and the cup so as to beproperly located therebetween and said wire is cut 011 by the cutter H8.The punch at station D carries a button, dielectric and wire assembly,which has just been transferred from station C, into a primer body whichhas been moved from station E of dial I25 thereunder in synchronism withthe movement of dial 45. The assembled button, dielectric, wire andprimer body which have just been moved to station E are coned by punch Icarried on slide 200, said slide being reciprocated by movement of punchoperating lever I96 (Fig. 6). The coned primer assembly which has justbeen moved to station G is flattened and staked by punch I5! carried byslide 200. The completed primer assembly which has arrived at station His forced through a sizing die and ejected from the device by punch I 52which is reciprocated by crosshead I32, through bifurcated fingers 2H3oscillated by punch operating lever I96.

What is claimed is:

1. In a machine of the character described, two synchronously indexablework-holding dials having work-holding apertures therein; means to feeddielectric; means to blank dielectric and place said blanked dielectricinto apertures in the first of said dials; means to shape saiddielectric to cup form in said first dial; means to sub-assemble saidshaped dielectric with a contact but ton in said first dial; means tofeed a primer body to a work-holding aperture in the second of saiddials; means to transfer said sub-assembly from the first dial to aprimer body in said second dial; and means to complete the assembly tofinal form in said second dial.

2. In a machine of the character described, two synchronously indexabledials having workholding apertures therein; means to feed dielectric;means to blank dielectric and place said blanked dielectric intoapertures of the first of said dials; means to shape said dielectric tocup form with an aperture in the center thereof; means to sub-assemblesaid shaped dielectric with a contact button and wire in said firstdial; means to feed a primer body to one of the apertures of the secondof said dials; means to transfer said sub-assembly from the first dialto a primer body in said second dial at a common operating station; andmeans to complete the assembly to final form. in said second dial.

3. In a machine of the character described, two synchronously indexabledials having work-holding apertures therein; means to feed dielectricstrip; means to blank said dielectric and place said blanked dielectricinto apertures in the first of said dials; means to shape saiddielectric to cup form with an aperture in the center thereof; means tosub-assemble said shaped dielectric with a contact button and wire inthe first of said dials; means to feed an open-ended primer body to oneof the apertures oi the second of said dials; means to transfer saidsub-assembly from the first dial into one end of a primer body in saidsecond dial at a common operating station; and means to secure saidsubassernbly in said primer body in said second dial so as to completethe assembly to final form.

WARREN S. REYNOLDS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 272,511 Angell Feb. 20, 1883279,497 Orcutt et a1. June 12, 1883 1,053,694 Anderson Feb. 18, 19131,091,136 Hilt Mar. 24, 1914 1,726,229 Kantor Aug. 27, 1929 2,225,710Norris Dec. 24, 1940 2,324,925 Hallowell July 20, 1943 2,373,582 KuehlApr. 10, 1945

